ES2199887T3 - VEHICLE ON LANES TO TRANSPORT PEOPLE, ESPECIALLY FOR TRAFFICKING IN SURROUNDINGS. - Google Patents

Abstract

A rail vehicle for passenger transportation, especially for local traffic, is provided with shock absorption units (1) at at least one of its ends. Said shock absorber units (1) are supported on a sandwich part (2) containing deformable metallic foam, in the longitudinal direction of the vehicle, said sandwich part forming a partial area of the floor (3) of the driver compartment (4), as a supporting structural element.

Description

Vehicle on rails to transport people, especially for commuter traffic.

The invention relates to a vehicle on lanes to transport people, especially for traffic commuter, which is equipped with shock absorption units at least one of its ends. Such vehicles are known, by example, by document DE-A1- 197 57 917.

It is generally known to have shock absorption units (shock absorbers) in the final area of vehicles on rails, which, for example, they comprise elastomer bodies or deformable hollow bodies of lock. Devices of this type can disintegrate a part of the impact energy that arises when colliding with vehicles of the same type or with road vehicles or on the road against an obstacle permanent.

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.The invention is based on the task of creating an innovative impact absorption zone, with defined behavior, in a vehicle on lanes of generic type with a view to shocks that arise

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This task is solved according to the invention because shock absorption units are supported in the direction longitudinal of the vehicle in a deformable component in the form of sandwich containing metallic foam, which forms as an element structural support a partial area of the bottom of the cabin of the driver.

The dependent claims indicate advantageous configurations of the invention.

The following describes in detail the invention by means of embodiments shown in the He drew.

Figures 1 and 2 show respectively, in a perspective representation, the lower part of the part front of a vehicle on rails, which has a hitch 7 central shock absorber with a coupling arm made in an articulated way.

Unlike figures 1 and 2, the vehicle on rails shown in figures 3 and 4 also in perspective it has a central shock absorber 8 known from the DE 195 13 386 A1, whose mechanism is composed of elements 8a who cooperate as shears.

Figures 5 to 8 are complementary views, or views in section, to figures 1 and 2. Figures 9 and 10 they complement figures 3 and 4 respectively.

The vehicle on rails according to figures 1 and 2 or according to figures 3 and 4 is provided with absorption units 1 of shocks that are part of a system called anti-stamping, which also has a bumper 6 profiled on the front. The profile of this bumper 6 prevents a vehicle mount, especially in the case of a crash with a vehicle of the same type. The absorption units 1 of shocks that can be made, for example, according to the document WO 98/38 438 and having at least one deformable segment of a thick-walled plastic tube, are joined, on the one hand, with bumper 6 and, on the other hand, they are supported by a sandwich component 2 in the longitudinal direction of the vehicle.

The sandwich component 2 that is It consists mainly of aluminum and a metallic foam form, as a structural support element, a partial area of the bottom 3 of driver's cab 4. In the examples of embodiment, the constructive length of component 2 in the form of sandwich is limited to the bottom zone 3, which is below a driver dashboard not shown here, found in driver's cabin 4. The sandwich component 2 it is detachably connected only on the 5 terminal brackets means of vehicle structure.

The rail vehicle according to the invention advantageously always has an impact absorption zone of three levels with defined behavior in the event of a crash, and:

to)

at speeds of up to approximately 8 km / h, minor shocks that occur are absorb only by shock absorption units 1 (no shown deformed especially in figures 9 and 10) which are deform with it in a plastic way (see figures 5 and 6). The 1 shock absorption units are replaced below simply for new parts. The vehicle itself remains without damage.

b)

at speeds of up to about 17 km / h, the absorption units 1 of shocks and additionally the sandwich component 2 (see Figures 7 and 8) which, in addition to their support function, It also serves to absorb shocks. Also in this case you can repair the existing slight damage of the vehicle by means of a Small repair with the help of components easily interchangeable

c)

at speeds of up to approximately 32 km / h, you have to start from a major accident, in which, however, apart from the absorption units 1 of sandwich and component 2 sandwich shaped, only deform the supports 5 terminals of the structure of the vehicle. The external frame beam and true passenger cell they remain, however, without damage even in an absorption of High energy of this type.

As can be seen in figures 1 and 2 or 3 and 4, the hitch 7 or 8 central shock of the vehicle corresponding is arranged completely behind the part front of the vehicle in the unattached position. In the state engaged in two vehicles, the pulse absorption zone of three levels described above is expanded by a mechanism damper and spring, which is usually contained in the hitch coupling arm 7a 7 central shock absorber or is subsequently connected to the elements 8a in the form of shears of the hitch 8 central shock absorber. So, the vehicle over lanes in each case have a collision behavior of 4-level clash in total.

List of reference characters

one

Absorption unit of shocks

two

Shaped Component of aluminum and metallic foam sandwich

3

Background

4

Cabin driver

5

Terminal support medium

6

Bumper

7

Hitch central shock absorber

7a

Arm of articulated coupling

8

Hitch central shock absorber

8a

Fit elements of shears

Claims (4)

1. Vehicle on rails to transport people, especially for commuter traffic, which is equipped with shock absorption units (1) at least one of its ends, characterized in that the shock absorption units (1) are supported by the longitudinal direction of the vehicle in a deformable sandwich component (2) containing metallic foam, which forms, as a structural support element, a partial area of the bottom (3) of the driver's cabin (4). 2. Rail vehicle according to claim 1, characterized in that the sandwich component (2) is limited in its constructive length to the bottom area (3), which is under a driver's control panel located in the cabin ( 4) of the driver. 3. Rail vehicle according to claim 1 or 2, characterized in that the sandwich component (2) is detachably connected to the structure of the vehicle for a simple change after energy absorption. 4. Rail vehicle according to claim 3, characterized in that the sandwich component (2) is connected only to the terminal supports (5) of the vehicle structure, with which its outer longitudinal stringers, and thereby the true Passenger cell, are not involved in energy absorption.